Testing for West Nile Virus – Forms and Instructions: Commercial tests to detect WNv and other arbovirus antibodies are readily available at most commercial laboratories. During 2009, GDPH recommends that diagnostic testing for human arbovirus infections be performed at commercial laboratories. The Georgia Public Health Laboratory (GPHL) can perform testing for serologic evidence of infection with each of the arboviruses that circulate in Georgia, but due to limited resources, specimens will not be tested by GPHL unless they meet the testing criteria.